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kogti [31]
3 years ago
7

You bought a magazine for $2 and some

Mathematics
1 answer:
barxatty [35]3 years ago
3 0

Answer:

8

Step-by-step explanation:

34= 4x + 2

-2             -2

32 =4x

/4      /4

x=8

I bought 8 erasers.

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3 of 5<br> What is the nth term rule of the linear sequence below?<br> 13,7,1, -5, -11, ...<br> © T=
OverLord2011 [107]

Answer:

The nth term is 6 .

13 — 7 = 6

7— 4 = 6

1 — (–5) = 6

-5— (-11) = 6

3 0
2 years ago
Birth weights of babies born to full-term pregnancies follow roughly a Normal distribution. At Meadowbrook Hospital, the mean we
Marina86 [1]

Answer:

Required Probability = 0.1283 .

Step-by-step explanation:

We are given that at Meadow brook Hospital, the mean weight of babies born to full-term pregnancies is 7 lbs with a standard deviation of 14 oz.

Firstly, standard deviation in lbs = 14 ÷ 16 = 0.875 lbs.

Also, Birth weights of babies born to full-term pregnancies follow roughly a Normal distribution.

Let X = mean weight of the babies, so X ~ N(\mu = 7 lbs , \sigma^{2}  = 0.875^{2}  lbs)

The standard normal z distribution is given by;

              Z = \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, X bar = sample mean weight

             n = sample size = 4

Now, probability that the average weight of the four babies will be more than 7.5 lbs = P(X bar > 7.5 lbs)

P(X bar > 7.5) = P( \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } > \frac{7.5-7}{\frac{0.875}{\sqrt{4} } }  ) = P(Z > 1.1428) = 0.1283 (using z% table)

Therefore, the probability that the average weight of the four babies will be more than 7.5 lbs is 0.1283 .

8 0
3 years ago
Analyze the diagram below and complete the instructions that follow.<br> Find the value of x.
liubo4ka [24]

Answer:

x=30

Step-by-step explanation:

2x=y-x

3x=y

2y=180

y=90

x=30.

7 0
3 years ago
A scuba diver standing on a boat is at an altitude of 1.3 meters above sea level. The scuba diver jumps into the water and decre
Alex17521 [72]

Answer:

4.3 meters below sea level

Step-by-step explanation:

Take the altitude above sea level minus the altitude below sea level

1.3 - 5.6 = 4.3

If this answer is correct, please make me Brainliest!

3 0
3 years ago
Describe the overall shape of this distribution. Explain your answer in complete sentences.
Stolb23 [73]

I DONT  KNOW  KJHBUGGYTFYU GVFTY YGFTRF 8IJFTS GUGFRX

4 0
3 years ago
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